For vain
徒然地,无效地,无结果地
🧩 词语组成解析
for
[fɚ]
prep. 为，为了;倾向于;关于;当作;
conj. 因为，由于;
🗣️ 情景例句
My father sends his regards to you.
我父亲向你问好。
That's rather disappointing.
真是让人失望。
I can't get through.
我打不通。